导　　师： 卢国斌

学科专业： 081901

授予学位： 硕士

作　　者： ;

机构地区： 辽宁工程技术大学

摘　　要： 边坡稳态监测是保障露天矿安全生产的重要工作。目前灵泉露天矿已处于即将闭坑的状态,坑下目前还有残煤6Mt,为安全、可靠地将这一部分残煤采出,需对现有系统进行修改,由于这一部分采煤处于矿坑下部,运输距离较大,为可靠、安全、经济地将残煤采出,需对目前现行的开采工艺进行改造。 本文针对该露天矿的特殊情况,将原开采工艺单斗—铁道,改为单斗—汽车工艺,将工作线推进方向由倾向推进变为走向推进,充分利用卡车转弯边径小,爬坡能力高的特点,在局部小范围内形成陡帮,以配合快速内排和边坡稳定监测,达到最大限度地采出残煤。 由于其开采工艺的改变,露天矿原工作帮变成非工作帮,其帮坡角度随着开采不断的增大,其边坡的稳定性需要重新的分析。考虑到其第四系由细砂、粘土和砂砾组成的地质特征,本文采用刚体极限分析法对其边坡稳定进行计算机模拟和分析并确定其有关参数,进行灵泉露天矿残煤开采设计、边坡稳定性评价,提出边坡稳定的控制措施。为相同或类似条件的矿井生产提供参考。 The monitoring in steady state of opencast slope is the most important job in open-pit mine's safety production. The Lingquan open-pit mine is now in the early period of pit closed. There are still 6Mt extract residual coal, in order to safety and reliability strip them, the current systems need some changes. The residual coal is in the lower part of mine pit, the transportation distance is longer than ordinary. In order to mining the residual coal reliably, safely and economically, meanwhile solves more than 1000 staff's work problems, maintenance society's stability, the present mining craft needs transformation. The paper in view of this open-pit mine's peculiar circumstance, change the mining craft from single dipppers-railroad into dipppers-trucks, change the operating line's promoting direction from tendency to tendency. The truck curve frontier is small, climbing power is high, make full use of these characteristics, forms steep gang in the partial small scope, coordination the fast in row and stability of slope monitor and achieves the maximum limit in mining the residual coal. Beacuse of the changing of mining craft, the working slope change into non-working wall, the angle of slope along with mining unceasing enlargement, the slope's stability needs analysis again. Considers the quarternary deposit is composition with fine sand, clay and the gravel, use the rigid limited equilibrium method to carry on computer simulation, analyzes and determines the related parameter in slope stability. Acorrding these, carries on the open-pit mine residual coal's mining design and the side slope stability appraisal, proposes the regulatory measures of slope stability. The same or similar conditions for the mine production of reference.

关 键 词： 边坡 安全生产 开采工艺 残煤开采

领　　域： [矿业工程] [矿业工程]